Wooden structure.



PATENTED JUNE 30,

D F. DALEY.

DENIS F. DALEY, OF MENOMINEE, MICHIGAN.

WOODEN STRUCTURE.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed May 15, 1907. Serial No. 373,852.

To all whom it may concern:

Be it known that I, DENIS F. DALEY, a citizen of the United States, residing at Menominee, in the county of Menominee and State of Michigan, have invented certain new and useful Improvements in l/Vooden Structures, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in wood-joints, and particularly to improvements in joints for circular wooden structures, such as tanks, cisterns, barrels, casks and the like.

An object of my invention is to provide a wood-joint which will remain closed under all variations of temperature and other 0011- ditions the parts of the joint being so symmetrically disposed as to expand and contract equally and without opening the joint.

Another object of my invention is to provide a wood-joint of such form that the parts may be manufactured in large quantity and, therefore, cheaply, and may be put together or assembled with the least labor, and, therefore, at the least expense.

In the drawings illustrating the principle of my invention and the best mode now known to me of applying that principle, Figure 1 is a horizontal section of part of a circular wooden structure built up of pieces provided with my new joint; Fig. 2 is a sectional detail showing the joint on an enlarged scale; and Fig. 3 shows the two parts or joint members in perspective and separated.

In carrying out my invention one stave or joint member a is formed with an inwardly projecting tongue or rib b the inner portion 0 of which is rounded and the neck portion (Z of which is narrower than the inner or head portion 0. Running parallel to the tongue or rib b is a groove e the inner portionf of which lies adjacent to the narrow neck portion (Z and is shaped to receive a member shaped like the head 0. The other stave or joint member a is formed with an outwardly projecting tongue or rib b which is shaped in all respects like the tongue I), having a head 0 and a narrow neck (1 in all respects similar, respectively to the head 0 and the neck (Z.

Running along between the body ortion of the member a and the tongue l) is a groove 6 shaped to receive the tongue I) which in the assembled condition of the members, as is shown in Fig. 2, fits exactly in the groove 6. Thus, each side of each stave is formed with a tongue; the tongue on one side projecting towards one face of the stave, while the tongue on the opposite side of the stave projects in the opposite direc tion. The groove adjacent to one of the tongues is of the same contour as the tongue on the opposite side of the same stave and the tongues are of like shape, as is clearly shown in the drawings.

In the case of soft woods, the two members may be assembled by forcing the tongues b and I) past each other in a direction at right angles to the line of the tongues. In this case the tongues are preferably covered with glue before being assembled; and after they are assembled, the wood will again swell and the tongues fill the grooves e, 6 ex actly. In assembling hard wood members, the parts are slipped by each other in the direction of the length of the tongues I), b.

As is clearly shown in Fig. 2, the tongues 11, b are of the very same shape and size, and the swell h of the head of the tongue is directed towards the neck of the eo-acting tongue. As is clearly shown, the head is rounded and free from sharp edges which would be liable to break; and the face i on the outside of the stave is plane.

I claim:

A stave for circular structures each side of which is formed with a tongue and a groove adjacent thereto, the contour of said groove being the same as the contour of the tongue on the opposite side of the stave; said tongues being of like shape and one tongue projecting towards one face of the stave, while the other tongue projects in the opposite direction each tongue being formed with a swell on the face adjacent to the groove on the same'side of the stave and having its opposite face plane; and the head of each tongue being rounded and free from sharp edges.

In testimony whereof I have hereunto set my hand at said Menominee this tenth day of May, A. D. 1907, in the presence of the two undersigned witnesses.

W. F. WAITE, DANIEL J. WAITE. 

